198
FXUS65 KBYZ 201936
AFDBYZ
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
136 PM MDT THU AUG 20 2026
KEY MESSAGES
- HOT AND MOSTLY DRY TODAY THROUGH FRIDAY.
- WEATHER SYSTEM BRINGS THE CHANCE OF PRECIPITATION BACK TO THE
REGION SATURDAY AND SUNDAY. THE RISK OF SEVERE THUNDERSTORMS IS
LOW. THUNDERSTORMS COULD PRODUCE HEAVY RAINFALL.
- DRIER WITH AN OCCASIONAL CHANCE OF PRECIPITATION NEXT WEEK.
DISCUSSION
TODAY THROUGH WEDNESDAY...
TODAY AND FRIDAY WILL BE HOT AND MOSTLY DRY AS A RIDGE OF HIGH
PRESSURE BUILDS IN ALOFT. HIGH TEMPERATURES DURING THIS TIME WILL
BE IN THE 80S AND 90S, WARMEST TODAY. WHILE THE MAJORITY OF THE
AREA WILL REMAIN DRY WITH LOW HUMIDITY, A SHOWER OR WEAK
THUNDERSTORM IS POSSIBLE (15 PERCENT CHANCE) OVER THE ABSAROKA-
BEARTOOTH MOUNTAINS DURING THE AFTERNOON AND EARLY EVENING BOTH
DAYS. IN ADDITION, SOME BREEZY WINDS WILL EXIST TODAY AND FRIDAY,
GENERALLY OUT OF THE WEST TO NORTHWEST TODAY AND THEN OUT OF THE
EAST FRIDAY. THE BREEZY WINDS WILL BE THE MOST WIDESPREAD FRIDAY.
SATURDAY AND SUNDAY WILL REMAIN HOT WITH HIGH TEMPERATURES IN THE
80S AND 90S. THE MAIN DIFFERENCE IS THAT THE CHANCE OF
PRECIPITATION RETURNS FOR BOTH DAYS (25 TO 50 PERCENT CHANCE,
GREATEST OVER THE MOUNTAINS) AS THE RIDGE OF HIGH PRESSURE IS
REPLACED BY A PASSING LOW PRESSURE SYSTEM TO THE NORTH. WITH
PRECIPITABLE WATER VALUES WELL ABOVE NORMAL (AROUND 1.0 TO 1.5
INCHES), ANY SHOWERS OR THUNDERSTORMS THAT DEVELOP SATURDAY AND
SUNDAY COULD PRODUCE MODERATE TO HEAVY RAINFALL. AT THIS TIME, THE
RISK OF SEVERE THUNDERSTORMS IS LOW, THOUGH A STRONGER
THUNDERSTORM CANNOT BE RULED OUT. IN ADDITION TO THE CHANCE OF
PRECIPITATION, WINDY CONDITIONS WILL EXIST AT TIMES BOTH SATURDAY
AND SUNDAY AHEAD OF AND BEHIND A COLD FRONT PASSAGE. WHILE THE
INCREASED ATMOSPHERIC MOISTURE WILL LIMIT THE FIRE WEATHER RISK A
BIT FOR MUCH OF THE WEEKEND, DRY CONDITIONS BEHIND THE COLD FRONT
SUNDAY MAY RESULT IN A SHORT PERIOD OF INCREASED FIRE WEATHER
CONDITIONS.
MONDAY THROUGH WEDNESDAY WILL REMAIN WARM WITH HIGH TEMPERATURES
IN THE 80S TO NEAR 90 DEGREES. WHILE DRIER CONDITIONS WILL RETURN,
AN OCCASIONAL CHANCE OF PRECIPITATION REMAINS. LA
AVIATION
WILDFIRE SMOKE WILL CONTINUE TO IMPACT SLANT RANGE VISIBILITY OVER
THE NEXT 24 HOURS. REDUCTIONS IN FLIGHT CATEGORY ARE UNLIKELY.
EASTERLY WINDS INCREASE THROUGHOUT THE LATE MORNING AND AFTERNOON
FRIDAY. MOST LOCATIONS CAN EXPECT WIND GUSTS IN THE 20S AND LOW
30S MPH. TORGERSON
PRELIMINARY POINT TEMP/POPS
FRI SAT SUN MON TUE WED THU
-----------------------------------------------------------
BIL 063/091 064/091 064/093 062/087 060/085 061/088 062/086
00/K 02/W 32/T 31/B 10/B 11/B 21/B
LVM 056/094 057/089 055/088 051/086 050/084 051/086 051/084
00/K 03/T 54/T 21/U 21/B 22/T 22/T
HDN 060/092 062/095 062/095 060/089 057/087 058/090 058/088
00/K 02/W 32/W 21/B 11/U 11/B 20/B
MLS 062/090 062/091 067/095 065/089 059/085 058/088 060/087
00/U 00/U 31/B 20/U 11/U 11/U 11/B
4BQ 064/092 062/091 066/094 065/089 060/085 059/088 061/087
00/K 01/B 31/U 31/U 21/B 12/W 21/B
BHK 057/090 054/088 060/092 061/090 055/085 052/087 055/086
00/U 00/B 41/B 20/U 10/U 11/U 31/B
SHR 059/093 058/092 060/091 057/086 055/084 054/086 054/086
00/K 01/B 33/T 22/T 32/T 22/T 12/T
BYZ WATCHES/WARNINGS/ADVISORIES
MT...NONE.
WY...NONE.
WEATHER.GOV/BILLINGS
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